Europe's horsemeat scandal has spread to Asia, where an imported lasagne brand was taken off the shelves in Hong Kong.

Officials ordered ParknShop, one of the biggest supermarket chains on the island, to pull the product as it "might be adulterated with horsemeat which has not undergone tests for veterinary drugs".

The chain, which is owned by tycoon Li Ka-shing, has about 280 stores in Hong Kong and the neighbouring gaming hub of Macau.

A spokeswoman at the government's food and environmental hygiene department said only one contaminated product had so far been sold in Hong Kong.

The Czech Republic has become the latest European country embroiled in the affair, with food inspectors ordering Tesco to withdraw Nowaco brand frozen beef lasagne after horsemeat was found.

Image:Findus is one of the companies whose products have been affected

The Czech Agriculture and Food Inspection Authority said it had found horse DNA in two samples of the Nowaco meals manufactured in Luxembourg.

Inspectors "ordered the seller to immediately withdraw the products from its network," the authority said.

A Tesco spokesperson said: "We are aware of the test results from the Czech food authority on Nowaco lasagne, a branded product, and have withdrawn the products from sale. Customers who purchased this product can return it for a full refund."

Meanwhile, further tests for horsemeat contamination are being carried out in the UK.

The Food Standards Agency is investigating a wide range of products including cafe sandwiches, gelatine, stock cubes and other beef-based foods sold pre-packed or loose.

The scandal has even reached Westminster, where parliamentary authorities said four beef products had been withdrawn from the heavily subsidised eateries used by MPs, peers and staff.

The products withdrawn were steak and kidney pie, beef and onion pie, steak and kidney suet pudding, and beef Italian meatballs. However, the products were later found to test negative.